baber/WOPTO huggingface dataset:
Patent GB-171533-A (GB)
Title: Feathering propeller for flying machines, and automatic means of actuating same
IPC: B64C11/34
Filed: 1920-09-06
Abstract: 171,533. Tuckfield, C. Sept. 6, 1920. Screw propellers. - A variable-pitch propeller for aircraft comprises blades C which are finely threaded and screwed into the boss, arms B attached to the blades being adapted to be moved, for varying the pitch, by a pivoted fork A. The lever may be connected to a collapsable bag, as described in Specification 129,663, [Class 7 (vi), Internalcombustion engines, Valves &c. for], which bag is filled with air at ground level and which by its contraction at higher levels, as when fitted to aeroplanes, automatically effects a variation in the pitch.
Patent GB-852358-A (GB)
Title: Polymerization catalyst recovery process
IPC: C08F10/00
Filed: 1957-08-14
Abstract: Solid catalyst is separated from suspension in a solution of olefin polymer by introducing polymer solution, solvent and suspended catalyst to a first centrifuging zone maintained under superatmospheric pressure, removing from this zone as product a first stream comprising a catalyst-free polymer solution, removing a second stream containing catalyst, solvent and polymer, introducing this second stream to a second centrifuging zone maintained under superatmospheric pressure, removing from this zone a quantity of material containing polymer, solvent and a small amount of catalyst, recycling the material to the first centrifuging zone and removing from the second zone a stream comprising solvent concentrated in catalyst.  The polymer solution may be introduced to the first zone after cooling to below the temperature at which polymer begins to precipitate therefrom, while the temperature of the stream entering the second zone may be increased above this point.  Specified olefins are ethylene, propylene, butylene, and copolymers with butadiene and isoprene, preferably being polymerized using chromium oxide, containing hexavalent chromium, with silica, alumina, zirconia, thoria and silica-alumina.  Apparatus for carrying out the process is described.  Specifications 790,195 and 804,641 are referred to.
Patent GB-518655-A (GB)
Title: Improved manufacture of bituminous substances
IPC: C10C3/04
Filed: 1938-09-01
Abstract: 518,655. Bituminous materials. EBANO ASPHALT-WERKE AKT.-GES. Sept. 1, 1938, No. 25650. Convention date, Sept. 6, 1937. [Class 91] Bituminous materials having a high resistance to heat and cold and a low viscosity, suitable for use in binding, saturating and adhesive compositions, are obtained by airblowing asphalt free viscous mineral oil distillates, obtained from crude oils with an asphalt basis or a mixed basis, at 160‹ to 200‹C. for 30 to 200 hours. The blowing may be accelerated by the addition of catalysts consisting of metal oxides and their salts or soaps, e.g., naphthenates sulphonates, stearates, or resinates of copper, lead, manganese, cobalt, iron or chromium. The blown asphalt may be treated with an alkali or an alkaline earth or a mixture of these. In an example, 40 kg. of a mineral oil of sp. gr. 0.956, flashpoint 225‹ C. and Engler viscosity at 50‹C., 10.2, are blown at 170 to 180‹ with 74,000 litres of air for 197 hours. The resulting mineral distillate has a sp. gr. of 1.001 at 15‹C., a penetration of 150 at 15‹C., and of 214 at 25‹C., a dropping point (Ubbelohde) of 119‹C., a softening point of 94‹C. (ball and ring) and 50‹ (Kramer-Sarnow), a ductility of 0.5 cm., breaking point (Fraass) below -20‹C., a viscosity (Engler) at 150‹C. of 10.4.
Patent GB-150738-A (GB)
Title: Apparatus for purifying the exhaust gases of internal combustion engines
IPC: F01N13/02
Filed: 1920-09-06
Abstract: 150,738. Schmidding, W. [Firm of]. Sept. 6, 1919, [Convention date]. Exhaust, dealing with; exhaust-silencers.-Apparatus for purifying and silencing exhaust gases comprises a receptacle A containing coke for absorbing solid and liquid constituents and a separate purifier B for further cleansing and deodorizing the gases. The receptacle A has a perforated inlet pipe a filled with small pieces of coke and a perforated partition b on which small pieces of coke are placed. The receptacle A is kept hot by the gases flowing through the pipe a, and is fitted with a safety valve d and a drain cock. The purifier B comprises a series of chambers, the first chamber a' containing metal plates b<1> carrying sheets of felt or cloth. The chamber c<1> is divided by inclined passages d' having staggered perforations and lined with felt. Chambers e<1>, f<1> are filled with porous material and chambers g<1>, h<1> with sponges or woollen stuff and fitted with flap valves i<1>, k<1> lined with felt. The final chamber l<1> contains sponges soaked with a pleasant-smelling liquid.
Patent GB-944355-A (GB)
Title: A solid propellant rocket motor and a method of manufacturing same
IPC: F02K9/24
Filed: 1961-07-17
Abstract: 944,355. Solid propellant rocket motors. GOTEX A. B. July 17, 1961 [July 28, 1960], No. 25794/61. Heading F3A. A rocket motor has the forward end of its propellant charge and combustion chamber tapered and the charge, wedged or secured, through the intermediary of an insulating layer, to the tapered portion of the chamber, a space being left between the combustion chamber wall and the remainder of the charge. In manufacturing the motor, the propellant charge 1, 1<SP>1</SP> is first fitted with the insulating sleeve 3 which may be formed by winding paper strip to give a lower burning rate to the sleeve than the charge. The assembled sleeve and charge are then supported in a hollow closed end mandrel and the tapered portion 1<SP>1</SP>, 3 forced into the tapered portion of the chamber by a thrust in excess of that to be developed by the motor. Finally, the nozzle 5 is inserted and the end portion 6 of the chamber spun over. A 2 inch gap at the forward end of the charge is desirable in case any slight forward movement of the charge occurs during operation. Cone angle may vary between 3 and 30 degrees, although for the embodiment described, used in a metal chamber, an angle between 4 and 6 degrees is specified.
Patent GB-867524-A (GB)
Title: Improvements in and relating to hot water boilers
IPC: F24H1/40
Filed: 1957-08-15
Abstract: 867,524. Hot-water boilers. VORKAUF, H. Aug. 15, 1957 [Aug. 20, 1956], No. 25815/57. Addition to 783,695. Class 64(1) A water-tube boiler is as described in the parent Specification, but where the rear wall tubes 8 bend rearwardly over the preheating coils 13 they are spaced from the roof and are drawn apart as at 12 to permit the throughflow of combustion gases. Instead of lying in the plane of the rear vertical corner tubes 3, Fig. 1 (not shown), the upper transverse header 6 may be in a more forward position, e.g. as in Fig. 2, near the plane of the wall of rear tubes 8, which wall is formed with a nose 16 projecting into the furnace 11. The collecting header 15 for the preheating coils 13 extends between the rear corner tubes 3. There may be additional large tubes 17 between the distributing header 1 and the collecting header 2. If there is a long furnace there is more than one tube 17 at each side, Fig. 3 (not shown), and the side wall tubes 9, Fig. 4, extend over the top of the furnace 11 beneath the front wall tubes 7 instead of being straight vertical tubes as in the other embodiments. Specifications 800,858 and 859,147 also are referred to.
Patent GB-156930-A (GB)
Title: An instrument for measuring water impacts and pressures on the hulls and floats of flying boats, seaplanes, hydro-planes and fast craft in general
IPC: G01L7/16
Filed: 1919-10-22
Abstract: 156,930. Benest, E. E., and Coates, C. V. Oct. 22, 1919. Indicators, applications of.-Comprises means for measuring water impacts on the hulls or floats of flying-boats, seaplanes, &c. when landing on, rising from, or moving through the water when the waves are high. The under surface of the hull or float has fitted into it a tube a in which slides a piston b with a very limited movement. The piston is provided with a hole e through which is passed a pin d fixed to the tube a. The travel of the piston is determined by the clearance between the pin and the hole, and is of the order of # th to 1/64 th of an inch. The piston is pressed outward by a spring f so that the end is flush or slightly proud of the end of the tube, which is flanged and shaped to interfere as little as possible with the flow of the water. The tension of the spring may be adjusted by a block h having lugs sliding in slots in the tube a to prevent rotation, such block being moved by a screwed sleeve i from a head k. A rod g passes from the piston through the spring and sleeve and is adapted to make an electric circuit and cause a record to be made when the blow exceeds the pressure of the spring and moves the piston upwards.
Patent GB-388455-A (GB)
Title: Screw propellers
IPC: B64C11/34
Filed: 1931-09-16
Abstract: 388,455. Air-screws. ECLIPSE AVIATION CORPORATION, 545, North Arlington Avenue, East Orange, New Jersey, U.S.A. Sept. 16, 1931, No. 25940. Convention date, Sept. 17, 1930. [Class 114.] A variable-pitch screw propeller wherein the pitch is adjusted by longitudinal displacements of the hub on the driving shaft, is provided with centrifugal masses directly connected to the blades for the purpose of neutralizing the torsion thereon. The blades 5 are mounted in sockets 14 secured to a hub member adapted to slide on the driving shaft against the restraint of springs 31. The spring plate 32 is connected by levers 36 with an arm 42 carrying an adjustable weight 44. The lever 42 is continued as an arm 37 for connection with the blade root 5. Movement of the blade under thrust results in change of pitch through the levers 36, 37, the action of the centrifugal weight 44 being arranged to counteract the torsion on the blades. In a modification the fixed portion of the blade socket 14 is provided with a ball race 19, the track 52 on the blade root being of irregular form, the balls which coact therewith mounting or receding into the track 53 and so producing on the blades a torque opposite to that of the torsion on the blades. The pitch of the blade is altered by means of rack-and-pinion gear 51 in this construction.
Patent GB-168253-A (GB)
Title: Improvements in or connected with electric controllers and in or connected with operating mechanism therefor
IPC: H01H19/56
Filed: 1920-09-10
Abstract: 168,253. Electric Control, Ltd., and Fisher, J. J. Sept. 10, 1920. Controllers, drum; actuating mechanism for.-Controllers for effecting reversal or dual control ot motors, generators, &c., are constructed so as to admit of being turned forwards and backwards, from a neutral position, through nearly a complete revolution ; the same set of strip or segmental contacts being operative in both forward and backward movement. In order tc effect this a controller A, Fig. 4 is associated with a double pushbutton switch J and a rocking two-way stop N, Fig. 8. The opening of one or other of the push-button contacts J<1>, J<2> precedes the movement of the controller, and, in the case shown, determines whether forward contactors 16 or reversing contactors 17 are to be closed. The movement of the controller in the chosen direction then brings about a sequence of changes in the circuits of the armature 1 and the shunt field 13 of a compound motor, whereby it progressively works up to full speed, the same set of segmental or strip contactors K to K<6> being employed for forward as for backward rotation. Single or double contrcller fingers are used. The engagement of a plate R with one or other of the prongs of the stop N arrests the turning movement of the drum after the designed angle. The Specification describes a modification in which the invention is applied to controlling a main motor by means of an auxiliary motor and a booster.
Patent GB-1283073-A (GB)
Title: Improvements in or relating to cooling tunnels
Inventor: MEAGHER GEORGE
IPC: A23G7/02
Filed: 1969-05-22
Abstract: 1283073 Cooling chocolate-coated articles G. MEAGHER 8 April 1970 [22 May 1969] 26050/69 Heading F4H Chocolate coated articles are cooled in the main part of a cooling tunnel by contact with air streams of progressively decreasing temperature and increasing velocity. In the remainder of the tunnel, the temperature of the articles is adjusted so that when they leave the tunnel their skin temperature is not below the dew point of the ambient atmosphere. As illustrated, articles are conveyed from left to right through a funnel, the main part of which comprises sections B<SP>1</SP> to B<SP>7</SP> supported by adjustable legs C. Air is cooled by refrigerating coils F and passed by fans G through a damper controlled opening J to the space above the conveyer and below a baffle D. The opening J is controlled by a damper I under the influence of a temperature controller H. Portions of the air stream flowing over the conveyer towards the tunner entrance are withdrawn through openings M having adjustable dampers L. The withdrawn air returns, above the baffle D, to the refrigerating coils F. A final part of the tunnel is formed of sections 0<SP>1</SP>, 0<SP>2</SP> and 0<SP>3</SP> in which the articles and the air stream over the conveyer move in the same direction. The sections 0<SP>1</SP>, 0<SP>2</SP> and 0<SP>3</SP> contain components similar to those contained in the sections B<SP>1</SP> to B<SP>7</SP>, but in addition, the section 0<SP>2</SP> includes a heater for use in regulating the air temperature in the final part of the tunnel so that the chocolate temperature rises to at least the dew point of the ambient atmosphere.
Patent GB-244692-A (GB)
Title: Improvements in latch mechanism
IPC: E05B65/32
Filed: 1924-07-17
Abstract: 244,692. Dehn, F. B., (Budd Manufacturing Co., E. G.). July 17, 1924. Latches, swinging, for the doors of automobiles are actuated by a handle near the upper edge of the door and comprises a follower actuating the latch through a sliding link and an arm rigidly connected to the follower boss and connected by a rod to the handle spindle. The handle also serves as a means for pulling open the door. The latch 18 is pivoted to the plate 10 at 16 and has a sliding link 19 pivoted to it at 26, the link straddling the follower boss and having a lug 21 sliding in a slot in the plate 10. Rigid in the follower spindle 34 is a cam-plate 80 and an arm 73. A rod 74 is pivoted to the arm 73 and to an arm 75 rigid in the handle spindle 76. When the handle is operated it turns the spindle 34 by the various connections and causes the follower 38 to retract the latch by sliding back the member 19 against the spring 27. The cam 80 is also rocked, pushing back the member 79 on the plunger 78 against the spring 77. Both springs 77 and 27 serve to restore the latch to its operative position when the handle is released. The handle is secured to a plug which is mounted to rotate freely in the door. The plug has a squared end 76 for the attachment of the arm 75.
Patent GB-1304665-A (GB)
IPC: B01J8/00
Filed: 1971-04-19
Abstract: 1304665 Unsaturated nitriles BADGER CO Inc 19 April 1971 [22 May 1970] 26172/71 Heading C2C Unsaturated nitriles, e.g. acrylonitrile and methacrylonitrile, are prepared by reacting an unsaturated olefin e.g. propylene or isobutylene, with ammonia and oxygen in a reactor containing a fluidized bed of an oixdation catalyst and characterized by having at least two serially - connected catalyst - containing zones with one being a catalyst regeneration zone and the other being a reaction zone located downstream of said regeneration zone, the oxygen and at least 3% of the total ammonia being introduced into the regeneration zone and the olefin together with any remaining ammonia being introduced into the reaction zone maintained at an elevated temperature and pressure, passing the olefin, ammonia and oxygen through the reaction zone and recovering the unsaturated nitrile produced.
Patent GB-825114-A (GB)
Title: Apparatus for pelletizing moist, finely divided, mineral solids
Inventor: VANEY FRED DANIEL DE
IPC: C22B1/24
Filed: 1957-08-20
Abstract: 825,114. Pelletizing apparatus. ERIE MINING CO. Aug. 20, 1957, No. 26257/57. Class 87(2). Apparatus for forming moist finely divided loose mineral solid particles, such as ore fines, into balls comprises an inclined conically shaped rotatable vessel 13 having, during use, the inner surface 12 lined with a compacted layer of the moist particles, means for feeding the particles to the vessel, and doctoring means stationary with respect to the rotation of the vessel for continuously limiting the thickness of the compacted layer, simultaneously providing on the latter a rolling surface of controlled roughness, and contacting the compacted layer along spaced, relatively narrow, parallel paths extending circumferentially of the layer which are progressively shifted laterally to effect doctoring of the entire area of the layer. The vessel 13 is rotated by means of a powerdriven pinion gear 36 which meshes with a bull gear 22 secured to the annular band end 23 of a spider member which is concentric with a stationary supporting shaft 17. A bar 60, to which are attached spaced scraper members 75, is disposed within the vessel 13 with a suitable mechanism provided at its outer end. The surface of bottom member 11 may be similarly doctored by means of a fixed doctor blade or, preferably, by either a rotary disc to which narrow scraping elements are attached or a reciprocating bar similar to that used for the side wall 12. In a modification, a rotating helical screw mounted with its major axis parallel to the side wall 12 may be substituted for the reciprocatory bar 60. Any suitable means for introducing the particles into the vessel 13 may be employed, e.g. an endless belt conveyer 78, Fig. 4, or a screw conveyer type of feeding device (not shown).
Patent GB-645586-A (GB)
Title: Improvements in or relating to filter press plates
IPC: B01D25/21
Filed: 1948-10-08
Abstract: 645,586. Filters. BENNETT, N. J., HOBSON, A. G., and BRITISH FILTERS, Ltd. Oct. 8, 1948, No. 26268. [Class 46] In a filter-press plate an area adjacent an inlet or outlet passage is formed by a readily-removable part or parts constituting a channel or channels for conveying the liquid to or from the plate surface and serving to support the filtering material. As shown in Fig. 1, a removable part comprises two separable sections 6 and 7 fitted within an aperture 5 of a double-sided plate having an inlet or outlet channel 4. The section 6 comprises a quadrantshaped member having ribs 8 defining channels 6 tapering down to a knife-edge 10, thus leaving a comb-like formation at the arcuate edge and providing communication between the two sides of the plate. The section 7 comprises two flat members separated by spacers 13 and 14 and defining a channel between them, the section engaging the section 6 by pairs of lugs 15 sliding over un-ribbed parts 16. The unit is retained in position by a spring 20 and by the plates on either side or one plate and one end of the press. In the modification of Fig. 5 the removable part is formed by spaced parallel plates 21, 22, fitted within shouldered portions on opposite sides of a correspondingly-shaped aperture 26 in the plate 1, and held together by a stud 23 journaled in the rear plate and having a head 24 which may be inserted through an aperture 25 in the front plate, and then turned. Transition channels 32 converging to knife edges 33 are formed in the side and end of the plate aperture to afford communication between the passage between the plate pieces and the filter plate surface. The invention may be applied to plates in which the inlet or outlet ports are arranged within the general area of the plate, and may open into a convex wall 1, the removable part having a comb edge spaced by a narrow gap from the wall.
Patent GB-172427-A (GB)
Title: Improvements in safety razor and other blade sharpeners
IPC: B24D15/08
Filed: 1920-09-13
Abstract: 172,427. Brougham, F. J., (Tubal Corporation). Sept. 13, 1920. V-slot and like blade sharpeners .-Relates to knife and safety-razor blade sharpeners in which sharpening-elements having opposed curved surfaces are yieldingly held together, and comprises a case for the elements and a slotted cover, through which a blade is inserted and moved longitudinally between the elements. The box 8 has a cover 9 slotted at 10 and contains the elements 5 held together by springs 13 interposed between arms 11<1> of a base 11.
Patent GB-206651-A (GB)
Title: Improvements relating to steam power plant
IPC: F22D1/32
Filed: 1922-09-29
Abstract: 206,651. Baumann, K., and Metropolitan-Vickers Electrical Co., Ltd. Sept. 29, 1922. Feed-water, heating. - Superheated steam tapped from one or more points of an engine for heating feed-water is reduced in temperature in its passage from the engine to the heaters. Steam taken from intermediate stages of a turbine 1 and led into feed-heaters 5, 6 is cooled by direct contact with water in chambers 7. Each chamber is divided by a horizontal plate 10 carrying vertical open-ended tubes 11. Water is admitted around the tubes through a branch 9. In a modification, each cooler consists of a perforated steam pipe surrounded by a jacket to which water is admitted. The steam may be cooled in surface coolers. The feed-water used as the cooling medium in the surface coolers is discharged into the feed-heaters or into the water pipes leading from the feed-heaters.
Patent GB-476198-A (GB)
Title: Improvements relating to the application of sections of material to a running web
IPC: A24C5/58
Filed: 1936-09-29
Abstract: 476,198. Cigarette-making and like machines. SHACKLETON, J., and INDUSTRIAL MACHINERY CO., Ltd. Sept. 29, 1936, No. 26361. [Class 130] In mechanism in which sections of tipping material are pressed on to gummed patches of a running web by a roller 5, means are provided to form a lap of the web which can be adjusted relatively to the co-operating surface of the roller. As applied to a cigarettemaking machine, the lap 6a is formed by feeding the cigarette wrapper 6 around rollers 7, 8, 9. The roller 7 is mounted on a spring- pressed arm 26 which is pivoted about the axis of the roller 8 and provided with an adjusting screw 27. To enable the gripping point between the lap and the roller 5 to be adjusted with respect to the point, of severance of the tipping material, the mounting 14 for the rollers 7, 8 can be rotated about the axis of the roller 5 by a pinion 22 meshing with a curved rack 21.